Update vat_number_names.txt

dev/resources/iso-normes/vat_number_names.txt

@@ -1 +1,7 @@
-http://en.wikipedia.org/wiki/VAT_identification_number
+https://en.wikipedia.org/wiki/VAT_identification_number
+
+terms
+(en) VAT = Value Added Tax
+(fr) TVA = Taxe sur la Valeur Ajouté
+(es) NIF / CIF
+(de) USt / MwSt